阅读说明：本技术 智能喷雾式加油机用液位计及油耗计算方法 (Liquid level meter for intelligent spray type oiling machine and oil consumption calculation method ) 是由 顾掌权 郭静平 王启强 蒋耀祥 许洪波 于 2019-10-17 设计创作，主要内容包括：本发明提供一种智能喷雾式加油机用液位计及油耗计算方法。更加适用于针织圆机的加油机油位的测量,可代替人工肉眼观察的方式,实现对液位信号的实时变化发出对应信号,只要液位有变化就有信号输出,实现对液位的实时情况的准确监控,液位变化可以实时反映出来,实现从液位的最高点到最低点的监测,并且利用液位计输出的数值进行油耗计算,油耗计算更加准确。(The invention provides a liquid level meter for an intelligent spray type oiling machine and an oil consumption calculation method. The oil level measuring device is more suitable for measuring the oil level of the oiling machine of a circular knitting machine, can replace a mode of manual visual observation, and can realize that a corresponding signal is sent out according to the real-time change of a liquid level signal, so that the signal is output as long as the liquid level is changed, the real-time situation of the liquid level is accurately monitored, the liquid level change can be reflected in real time, the monitoring from the highest point to the lowest point of the liquid level is realized, and the oil consumption is calculated by utilizing the numerical value output by the liquid level meter, so that.)

1. Intelligence atomizing level gauge for oiling machine, its characterized in that includes: the liquid level meter comprises a liquid level meter main body, a sliding block and a disc-shaped floater sleeved outside the liquid level meter main body, wherein four pairs of floater magnets are arranged on the inner side surface of the disc-shaped floater at equal intervals in the radial direction, each pair of floater magnets consists of two magnets with opposite polarities, and the two magnets are arranged along the axial direction of the disc-shaped floater; a cavity is formed in the liquid level meter main body, a PCB is arranged in the cavity, and the PCB is divided into two areas, namely a resistance plate and a conductive plate; the sliding block is positioned in the cavity, two sliding block magnets with opposite polarities are arranged in the sliding block, and the two sliding block magnets are arranged along the axial direction of the sliding block; and a copper brush is arranged on the sliding block, one group of bristles of the copper brush is in contact with the resistance plate, and the other group of bristles of the copper brush is in contact with the conductive plate.

2. The level gauge for an intelligent aerosol dispenser of claim 1, wherein the slider comprises: a slider body; the sliding block comprises a sliding block body and is characterized in that sliding grooves are formed in two sides of the sliding block body, protruding strips matched with the sliding grooves are arranged on the inner wall of the cavity, and the protruding strips are embedded into the sliding grooves, so that the sliding block can move along the protruding strips.

3. The level gauge for the intelligent atomizing oiling machine according to claim 2, wherein a containing cavity is formed in the sliding block main body, the sliding block magnet is arranged in the containing cavity, the cavity opening of the containing cavity is sealed by ultrasonic plastic welding, and the two sliding block magnets with opposite polarities are separated by a plastic sheet.

4. The level gauge for an intelligent aerosol dispenser of claim 3, wherein the copper brush comprises: the copper brush comprises a copper brush body and two groups of bristles arranged on the copper brush body, wherein a round hole is formed in the copper brush body, a screw hole is formed in the slider body, and the copper brush is fixed on the slider body through a self-tapping screw.

5. The level gauge for a smart aerosol dispenser of claim 4, wherein the disk-shaped float comprises: the lower groove of the floater and the upper cover buckled on the lower groove of the floater are welded and sealed by ultrasonic plastic.

6. The method for calculating the oil consumption of the intelligent spray type refueling machine is characterized by comprising the following steps of:

s1: starting up calibration before the oiling machine operates, and recording reference values of ADC sampling at the moment when the liquid level of an oil tank of the oiling machine is at the lowest position and the highest position respectively, and recording the reference values as ADCGetBase [0] and ADCGetBase [1], so that 4096 ADCGetBase [0] and 4096 ADCGetBase [1] are corresponding digital quantities when the liquid level of the oil tank of the oiling machine is at the lowest position and the highest position;

s2: acquiring a real-time liquid level change signal of a liquid level of a fuel tank of the fuel dispenser measured by a liquid level meter according to any one of claims 1-5;

s3: when the oiling machine normally operates, recording the current oil quantity every 30 minutes to obtain an oil quantity change value Cur _ Fule _ Cop _ x in 30 minutes, and calculating the instantaneous oil consumption dX according to the following formula, wherein the unit is mL/H:

(Cur_Fule_Cop_x)×2/(4096×(ADCGetBase[1]-ADCGetBase[0]))＝dX/V；

in the above formula, V is the volume of the oil tank of the oiling machine;

s4: when the oiling machine normally operates, the working Time Work _ Time _ min is recorded, so that the average oil consumption dY is calculated according to the following formula, wherein the unit is mL/H:

dY＝(Total_Work_Oil_Fuel)×2/(Work_Time_min)；

in the above formula, Total _ Work _ Oil _ Fuel is the Total Oil consumption of the oiling machine after starting;

s5: calculating the service time H of the residual oil quantity of the oil tank of the refueling machine according to the current instantaneous oil consumption dX and the following formula:

H＝Vi/dX；

in the above equation, Vi is the current remaining oil amount, and the current remaining oil amount Vi is calculated according to the following equation:

(X-4096×ADCGetBase[0])/(4096×(ADCGetBase[1]-ADCGetBase[0]))＝Vi/V；

in the above formula, X represents the digital quantity of the current oil quantity and liquid level measured by the liquid level meter, and V is the volume of the oil tank of the refueling machine.

Technical Field

The invention belongs to the technical field of textile machinery equipment, and particularly relates to a liquid level meter and an oil consumption calculation method for an intelligent spray type oiling machine.

Background

The mode of taking is mostly used liquid level switch to measure knitting circular knitting machine tanker aircraft liquid level in the existing market, only can trigger the switch and report to the police when the oil level descends the minimum, observes the oil level height and then judges by the oil level in the external transparent pipe of pure mechanical type's oil tank in addition, not only need consume the artificial time and observe, and is inefficient, and the numerical value of observing is also inaccurate moreover, can only observe approximate numerical value. In addition, the most common liquid level meters on the market are all capacitance type or inductance type, and the liquid level meters can only send out liquid level signals at a certain time point or a certain position, and cannot send out corresponding signals to the real-time change of the liquid level signals, so that the oil consumption condition of the oiling machine cannot be calculated. In the whole oiling machine working process, the oil consumption condition of the oiling machine during working cannot be accurately known due to the fact that a system for monitoring oil level change is not arranged.

Disclosure of Invention

In order to solve the technical problem, the invention provides a liquid level meter and an oil consumption calculation method for an intelligent spray type oiling machine.

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.

The invention adopts the following technical scheme:

in some optional embodiments, there is provided a liquid level gauge for an intelligent aerosol dispenser, comprising: the liquid level meter comprises a liquid level meter main body, a sliding block and a disc-shaped floater sleeved outside the liquid level meter main body, wherein four pairs of floater magnets are arranged on the inner side surface of the disc-shaped floater at equal intervals in the radial direction, each pair of floater magnets consists of two magnets with opposite polarities, and the two magnets are arranged along the axial direction of the disc-shaped floater; a cavity is formed in the liquid level meter main body, a PCB is arranged in the cavity, and the PCB is divided into two areas, namely a resistance plate and a conductive plate; the sliding block is positioned in the cavity, two sliding block magnets with opposite polarities are arranged in the sliding block, and the two sliding block magnets are arranged along the axial direction of the sliding block; and a copper brush is arranged on the sliding block, one group of bristles of the copper brush is in contact with the resistance plate, and the other group of bristles of the copper brush is in contact with the conductive plate.

In some optional embodiments, the slider comprises: a slider body; the sliding block comprises a sliding block body and is characterized in that sliding grooves are formed in two sides of the sliding block body, protruding strips matched with the sliding grooves are arranged on the inner wall of the cavity, and the protruding strips are embedded into the sliding grooves, so that the sliding block can move along the protruding strips.

In some optional embodiments, an accommodating cavity is formed in the slider main body, the slider magnet is arranged in the accommodating cavity, a cavity opening of the accommodating cavity is sealed by ultrasonic plastic welding, and the two slider magnets with opposite polarities are separated by a plastic sheet.

In some optional embodiments, the copper brush comprises: the copper brush comprises a copper brush body and two groups of bristles arranged on the copper brush body, wherein a round hole is formed in the copper brush body, a screw hole is formed in the slider body, and the copper brush is fixed on the slider body through a self-tapping screw.

In some optional embodiments, the discoid float comprises: the lower groove of the floater and the upper cover buckled on the lower groove of the floater are welded and sealed by ultrasonic plastic.

In some optional embodiments, there is provided a method for calculating oil consumption of an intelligent atomizing refueling machine, comprising:

s1: starting up calibration before the oiling machine operates, and recording reference values of ADC sampling at the moment when the liquid level of an oil tank of the oiling machine is at the lowest position and the highest position respectively, and recording the reference values as ADCGetBase [0] and ADCGetBase [1], so that 4096 ADCGetBase [0] and 4096 ADCGetBase [1] are corresponding digital quantities when the liquid level of the oil tank of the oiling machine is at the lowest position and the highest position;

s2: acquiring a liquid level real-time change signal of the liquid level of an oil tank of the oiling machine measured by a liquid level meter;

s3: when the oiling machine normally operates, recording the current oil quantity every 30 minutes to obtain an oil quantity change value Cur _ Fule _ Cop _ x in 30 minutes, and calculating the instantaneous oil consumption dX according to the following formula, wherein the unit is mL/H:

(Cur_Fule_Cop_x)×2/(4096×(ADCGetBase[1]-ADCGetBase[0]))＝dX/V；

in the above formula, V is the volume of the oil tank of the oiling machine;

s4: when the oiling machine normally operates, the working Time Work _ Time _ min is recorded, so that the average oil consumption dY is calculated according to the following formula, wherein the unit is mL/H:

dY＝(Total_Work_Oil_Fuel)×2/(Work_Time_min)；

in the above formula, Total _ Work _ Oil _ Fuel is the Total Oil consumption of the oiling machine after starting;

s5: calculating the service time H of the residual oil quantity of the oil tank of the refueling machine according to the current instantaneous oil consumption dX and the following formula:

H＝Vi/dX；

in the above equation, Vi is the current remaining oil amount, and the current remaining oil amount Vi is calculated according to the following equation:

(X-4096×ADCGetBase[0])/(4096×(ADCGetBase[1]-ADCGetBase[0]))＝Vi/V；

in the above formula, X represents the digital quantity of the current oil quantity and liquid level measured by the liquid level meter, and V is the volume of the oil tank of the refueling machine.

The invention has the following beneficial effects: the oil level measuring device is more suitable for measuring the oil level of the oiling machine of a circular knitting machine, can replace a mode of manual visual observation, realizes that a corresponding signal is sent out according to the real-time change of a liquid level signal, outputs the signal as long as the liquid level changes, realizes the accurate monitoring of the real-time condition of the liquid level, can reflect the liquid level change in real time, realizes the monitoring from the highest point to the lowest point of the liquid level, and calculates the oil consumption by utilizing the numerical value output by the liquid level meter, so that the oil consumption calculation is more accurate; when the operation is carried out for a period of time, the liquid level is unchanged, and a fault alarm can be prompted.

Drawings

FIG. 1 is a schematic view of the external structure of a liquid level gauge for an intelligent atomizing fuelling machine of the present invention;

FIG. 2 is a view from the C-C of FIG. 1;

FIG. 3 is a view from E-E of FIG. 1;

FIG. 4 is a schematic view of the outer structure of the slider of the present invention;

FIG. 5 is a schematic view of the internal structure of the slider of the present invention;

FIG. 6 is a schematic structural view of a copper brush according to the present invention;

FIG. 7 is a voltage divider circuit diagram of the fluid level gauge of the present invention;

FIG. 8 is a circuit diagram of the operation of the gauge of the present invention.

Detailed Description

The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others.

As shown in fig. 1 to 6, in some illustrative embodiments, there is provided a liquid level gauge for an intelligent atomizing oiling machine, including: the liquid level meter comprises a liquid level meter main body 1, a sliding block 2 and a disc-shaped floater 3 sleeved outside the liquid level meter main body 1, wherein the floater 3 can move along the axial direction of the liquid level meter main body 1.

Four pairs of floater magnets 4 are arranged on the inner side surface of the disc-shaped floater 1 at equal intervals in the radial direction, each pair of floater magnets consists of two magnets with opposite polarities, and the two magnets are arranged along the axial direction of the disc-shaped floater, namely, one magnet with opposite polarities is respectively arranged at the upper part and the lower part of each of four circumference equal points on the inner side surface of the disc-shaped floater 1. Wherein, discoid float 1 includes: the float lower groove 11 and the upper cover 12 buckled on the float lower groove 11 are sealed by ultrasonic plastic welding, a cavity is formed in the disc-shaped float 1 after the float lower groove 11 and the upper cover 12 are buckled, and the inner side wall close to the sliding block in two inner side walls of the formed cavity is the inner side surface of the disc-shaped float 1.

The cavity 5 is arranged in the liquid level meter main body 1, the PCB 10 is arranged in the cavity 5, the PCB 10 is divided into two areas which are respectively a resistance plate 6 and a conductive plate 7, and the slider 2 can move up and down in the cavity 5. Two opposite-polarity slider magnets 8 are arranged in the slider 2, and the two slider magnets 8 are arranged along the axial direction of the slider 2, namely, the slider magnets 8 with opposite polarities are respectively arranged at the upper part and the lower part of the center of the slider 2. The slider 2 is provided with a copper brush 9, one group of bristles of the copper brush 9 is in contact with the resistance plate 6, and the other group of bristles is in contact with the conductive plate 7.

When the oil level changes in the oiling machine oil tank, the disk-shaped floater 3 moves up and down along with the liquid level by means of buoyancy, four pairs of floater magnets 4 are arranged in the disk-shaped floater 3, and two slider magnets 8 are arranged in the slider 2, so that the disk-shaped floater 3 attracts the slider 2 arranged in the liquid level meter main body 1 to move along with the liquid level in the up-and-down movement process. The slider 2 is provided with a copper brush 9, and the copper brush 9 slides on the resistance plate 6 and the conductive plate 7 to change the resistance value in the whole loop. The resistance value is output to the fuel consumption calculation system of the fuel dispenser in a voltage signal mode, and the changed voltage value can reflect the change condition of the liquid level.

The slider 2 includes: a slider main body 21; the sliding grooves 22 are formed in the two sides of the sliding block main body 21, protruding strips 23 matched with the sliding grooves 22 are arranged on the inner wall of the cavity, and the protruding strips 23 are embedded into the sliding grooves 22, so that the sliding block 2 can move along the protruding strips 23, and the sliding block 2 is guaranteed to stably move in the cavity 5.

Set up in the slider main part 21 and hold chamber 26, slider magnet 8 sets up and seals by sealed glue 24 in holding chamber 23 and holding the accent in chamber 23, and slider magnet 8 sets up and adopts ultrasonic plastic welding sealed in holding chamber 26 and holding the accent in chamber 26. The slider magnets 8 are two pieces with opposite polarities, and the two pieces of slider magnets 8 with opposite polarities are separated by a plastic sheet 25. The effect of opposite polarity is that the magnet in the slide block 2 and the magnet in the floater are horizontally aligned, and the centers of the two are horizontally aligned, so that the floater is at the lowest position when the residual oil quantity in the oil tank is minimum, and the utilization rate of lubricating oil is improved. The magnets are opposite in polarity and therefore cannot be bonded together, and a plastic piece 25 is added between the two second magnets 8 for fixing.

The copper brush 9 includes: copper brush main part 91 and set up two sets of brush hairs 92 at copper brush main part 91 tip, set up round hole 93 on copper brush main part 91, set up the screw hole on the slider main part 2, copper brush 9 passes through self tapping screw and round hole 93 to be fixed on slider main part 2, and is stable and the installation is simple and easy. The brush bristles 92 are made of conductive metal alloy, so that the electric conductivity and the wear resistance are good, and when the sliding block 2 slides up and down, the two groups of brushes respectively slide on the resistance plate 6 and the conductive plate 7 to realize conduction, so that the whole loop is communicated.

The invention also provides an intelligent oil consumption calculation method for the spray type refueling machine, which comprises the following steps:

s1: and starting up calibration before the oiling machine operates, and recording reference values of ADC sampling at the moment when the liquid level of the oil tank of the oiling machine is at the lowest position and the highest position respectively, wherein the reference values are recorded as ADCGetBase [0] and ADCGetBase [1], so that 4096 ADCGetBase [0] and 4096 ADCGetBase [1] are corresponding digital quantities when the liquid level of the oil tank of the oiling machine is at the lowest position and the highest position. The ADC is an analog-to-digital converter that converts an analog quantity to a digital quantity.

S2: and acquiring a liquid level real-time change signal of the liquid level of the oil tank of the oiling machine measured by the liquid level meter.

S3: when the oiling machine normally operates, recording the current oil quantity every 30 minutes to obtain an oil quantity change value Cur _ Fule _ Cop _ x in 30 minutes, wherein the difference value of the oil quantities measured in two adjacent times is the Cur _ Fule _ Cop _ x. The instantaneous fuel consumption dX is calculated according to the following formula, in mL/H:

(Cur_Fule_Cop_x)×2/(4096×(ADCGetBase[1]-ADCGetBase[0]))＝dX/V；

in the above formula, V is the volume of the oil tank of the refueling machine, the left side of the equal sign represents the digital quantity of the instantaneous oil consumption, the right side of the equal sign represents the analog quantity of the instantaneous oil consumption, and the left side of the equation is multiplied by 2 because the data is updated every half hour and the unit of the instantaneous oil consumption dX is mL/H.

S4: when the oiling machine normally operates, the working Time Work _ Time _ min is recorded, namely Work _ Time _ min is the system startup operation Time, so that the average oil consumption dY is calculated according to the following formula, and the unit is mL/H:

dY＝(Total_Work_Oil_Fuel)×2/(Work_Time_min)；

in the above formula, Total _ Work _ Oil _ Fuel is the Total Oil consumption after the oiling machine is started, and the average Oil consumption dY is updated every half an hour, so that the Total Oil consumption after the oiling machine is started, Total _ Work _ Oil _ Fuel needs to be multiplied by 2.

When the oiling machine normally operates, no shutdown signal exists, the current Oil quantity is recorded every 5 minutes, and the Oil consumption is accumulated to be used as the Total Oil consumption quantity Total _ Work _ Oil _ Fuel after the oiling machine is started.

S5: calculating the service time H of the residual oil quantity of the oil tank of the oiling machine according to the current instantaneous oil consumption dX and the following formula, wherein the service time H is updated once every half hour, and the unit is hour:

H＝Vi/dX；

in the above equation, Vi is the current remaining oil amount, and the current remaining oil amount Vi is calculated according to the following equation:

(X-4096×ADCGetBase[0])/(4096×(ADCGetBase[1]-ADCGetBase[0]))＝Vi/V；

in the above formula, the left and right of the equation represent digital quantity and analog quantity respectively, X represents the digital quantity of the current oil quantity and liquid level measured by the liquid level meter, and V is the volume of the oil tank of the refueling machine.

As shown in FIG. 7, the output voltage of the resistance plate is 0-3.7V, and the ADC acquisition voltage is in the range of 0-3.3V, so that the output voltage of the resistance plate needs to be divided. The sampling range of ADC used by the controller is 0-3.3V, the corresponding digital quantity is 0-4096, and the voltage range of the resistance plate after voltage division is 0-2.2V, so the corresponding digital quantity is 0-2731. Its physical meaning is the reference volume V of the fuel tank of the refuelling machine, and its physical meaning 4096 (ADCGetBase [1] -ADCGetBase [0]) is the actual volume of the tank after calibration.

As shown in fig. 8, the float of the liquid level meter of the present invention outputs different voltage values as the liquid level rises and falls, the numerical value is connected to the circuit board 101 through the output line, the oil consumption calculation program in the program built in the circuit board 101 calculates the numerical value and outputs the numerical value to the display screen 102, and the oil level height, the instantaneous oil consumption, the accumulated oil consumption and the next refueling time are displayed in a pattern and digital manner.

Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.